The bar graph shows the number of packets of different food collected in a donation drive.
- 13 of the total number of packets of food collected was dried fruits. How many packets of pasta were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
5 kg |
| Dried Fruits |
495 g |
| Coffee |
280 g |
| Pasta |
300 g |
What is the difference between the total mass of coffee collected and the total mass of rice collected? Give your answer in kg.
(a)
Number of packets of dried fruits collected = 1 u
1 u = 38
Total number of packets of food items collected
= 3 u
= 3 x 38
= 114
Number of packets of pasta collected
= 114 - 38 - 38 - 22
= 16
(b)
1 kg = 1000 g
5 kg = 5 x 1000 = 5000
Total mass of rice collected
= 38 x 5000
= 190000 g
Total mass of coffee collected
= 22 x 280
= 6160 g
Difference between the total mass of coffee and the total mass of rice collected
= 190000 - 6160
= 183840 g
1000 g = 1 kg
183840 g = 183840 ÷ 1000 = 183.84 kg
Answer(s): (a) 16; (b) 183.84 kg
